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buildroot/toolchain/uClibc/uClibc-0.9.28-host-ldconfig.patch

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This patch supports cross-development for embedded systems by allowing the
host version of ldconfig (ldconfig.host) to build ld.so.cache for the target.
Changes include:
1) LDSO_CACHE_SUPPORT is defined for the host build.
2) A little-endian host can create a big-endian ld.so.cache, and vice versa.
3) Can use -r option without chroot(), so no need to run as superuser.
Dan Howell <dahowell@directv.com>
diff -urN uClibc-orig/utils/chroot_realpath.c uClibc-20050502/utils/chroot_realpath.c
--- uClibc-orig/utils/chroot_realpath.c 1969-12-31 16:00:00.000000000 -0800
+++ uClibc-20050502/utils/chroot_realpath.c 2005-09-12 18:30:29.000000000 -0700
@@ -0,0 +1,163 @@
+/*
+ * chroot_realpath.c -- reslove pathname as if inside chroot
+ * Based on realpath.c Copyright (C) 1993 Rick Sladkey <jrs@world.std.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Library Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Library Public License for more details.
+ *
+ * 2005/09/12: Dan Howell (modified from realpath.c to emulate chroot)
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <sys/types.h>
+#include <unistd.h>
+#include <stdio.h>
+#include <string.h>
+#include <strings.h>
+#include <limits.h> /* for PATH_MAX */
+#include <sys/param.h> /* for MAXPATHLEN */
+#include <errno.h>
+#ifndef __set_errno
+#define __set_errno(val) ((errno) = (val))
+#endif
+
+#include <sys/stat.h> /* for S_IFLNK */
+
+#ifndef PATH_MAX
+#define PATH_MAX _POSIX_PATH_MAX
+#endif
+
+#define MAX_READLINKS 32
+
+char *chroot_realpath(const char *chroot, const char *path, char resolved_path[])
+{
+ char copy_path[PATH_MAX];
+ char link_path[PATH_MAX];
+ char got_path[PATH_MAX];
+ char *got_path_root = got_path;
+ char *new_path = got_path;
+ char *max_path;
+ int readlinks = 0;
+ int n;
+ int chroot_len;
+
+ /* Trivial case. */
+ if (chroot == NULL || *chroot == '\0' ||
+ (*chroot == '/' && chroot[1] == '\0')) {
+ strcpy(resolved_path, path);
+ return resolved_path;
+ }
+
+ chroot_len = strlen(chroot);
+
+ if (chroot_len + strlen(path) >= PATH_MAX - 3) {
+ __set_errno(ENAMETOOLONG);
+ return NULL;
+ }
+
+ /* Make a copy of the source path since we may need to modify it. */
+ strcpy(copy_path, path);
+ path = copy_path;
+ max_path = copy_path + PATH_MAX - chroot_len - 3;
+
+ /* Start with the chroot path. */
+ strcpy(new_path, chroot);
+ new_path += chroot_len;
+ while (*new_path == '/' && new_path > got_path)
+ new_path--;
+ got_path_root = new_path;
+ *new_path++ = '/';
+
+ /* Expand each slash-separated pathname component. */
+ while (*path != '\0') {
+ /* Ignore stray "/". */
+ if (*path == '/') {
+ path++;
+ continue;
+ }
+ if (*path == '.') {
+ /* Ignore ".". */
+ if (path[1] == '\0' || path[1] == '/') {
+ path++;
+ continue;
+ }
+ if (path[1] == '.') {
+ if (path[2] == '\0' || path[2] == '/') {
+ path += 2;
+ /* Ignore ".." at root. */
+ if (new_path == got_path_root + 1)
+ continue;
+ /* Handle ".." by backing up. */
+ while ((--new_path)[-1] != '/');
+ continue;
+ }
+ }
+ }
+ /* Safely copy the next pathname component. */
+ while (*path != '\0' && *path != '/') {
+ if (path > max_path) {
+ __set_errno(ENAMETOOLONG);
+ return NULL;
+ }
+ *new_path++ = *path++;
+ }
+ if (*path == '\0')
+ /* Don't follow symlink for last pathname component. */
+ break;
+#ifdef S_IFLNK
+ /* Protect against infinite loops. */
+ if (readlinks++ > MAX_READLINKS) {
+ __set_errno(ELOOP);
+ return NULL;
+ }
+ /* See if latest pathname component is a symlink. */
+ *new_path = '\0';
+ n = readlink(got_path, link_path, PATH_MAX - 1);
+ if (n < 0) {
+ /* EINVAL means the file exists but isn't a symlink. */
+ if (errno != EINVAL) {
+ /* Make sure it's null terminated. */
+ *new_path = '\0';
+ strcpy(resolved_path, got_path);
+ return NULL;
+ }
+ } else {
+ /* Note: readlink doesn't add the null byte. */
+ link_path[n] = '\0';
+ if (*link_path == '/')
+ /* Start over for an absolute symlink. */
+ new_path = got_path_root;
+ else
+ /* Otherwise back up over this component. */
+ while (*(--new_path) != '/');
+ /* Safe sex check. */
+ if (strlen(path) + n >= PATH_MAX - 2) {
+ __set_errno(ENAMETOOLONG);
+ return NULL;
+ }
+ /* Insert symlink contents into path. */
+ strcat(link_path, path);
+ strcpy(copy_path, link_path);
+ path = copy_path;
+ }
+#endif /* S_IFLNK */
+ *new_path++ = '/';
+ }
+ /* Delete trailing slash but don't whomp a lone slash. */
+ if (new_path != got_path + 1 && new_path[-1] == '/')
+ new_path--;
+ /* Make sure it's null terminated. */
+ *new_path = '\0';
+ strcpy(resolved_path, got_path);
+ return resolved_path;
+}
diff -urN uClibc-orig/utils/ldconfig.c uClibc-20050502/utils/ldconfig.c
--- uClibc-orig/utils/ldconfig.c 2005-05-01 23:10:12.000000000 -0700
+++ uClibc-20050502/utils/ldconfig.c 2005-09-16 19:26:33.000000000 -0700
@@ -22,6 +22,8 @@
*
* This program may be used for any purpose as long as this
* copyright notice is kept.
+ *
+ * 2005/09/16: Dan Howell (modified for cross-development)
*/
#include <stdio.h>
@@ -37,6 +39,7 @@
#include <errno.h>
#include <sys/stat.h>
#include <sys/mman.h>
+#include "bswap.h"
#include "dl-defs.h"
#define BUFFER_SIZE 4096
@@ -56,6 +59,7 @@
#if !defined (N_MAGIC)
#define N_MAGIC(exec) ((exec).a_info & 0xffff)
#endif
+#define N_MAGIC_SWAP(exec) (bswap_32((exec).a_info) & 0xffff)
/* Code indicating object file or impure executable. */
#define OMAGIC 0407
/* Code indicating pure executable. */
@@ -97,6 +101,8 @@
char *conffile = LDSO_CONF; /* default conf file */
char *cachefile = LDSO_CACHE; /* default cache file */
#endif
+char *chroot_dir = NULL;
+int byteswap = 0;
struct needed_tab
{
@@ -117,6 +123,8 @@
{ NULL, LIB_ELF }
};
+extern char *chroot_realpath(const char *chroot, const char *path, char resolved_path[]);
+
/* These two are used internally -- you shouldn't need to use them */
static void verror_msg(const char *s, va_list p)
@@ -242,6 +250,8 @@
ElfW(Ehdr) *elf_hdr;
struct stat statbuf;
char buff[BUFFER_SIZE];
+ char real[BUFFER_SIZE];
+ static int byteswapflag = -1; /* start with byte-order unknown */
/* see if name is of the form *.so* */
if (name[strlen(name)-1] != '~' && (cp = strstr(name, ".so")))
@@ -256,8 +266,12 @@
sprintf(buff, "%s%s%s", dir, (*dir && strcmp(dir, "/")) ?
"/" : "", name);
+ /* get real path in case of chroot */
+ if (!chroot_realpath(chroot_dir, buff, real))
+ warn("can't resolve %s in chroot %s", buff, chroot_dir);
+
/* first, make sure it's a regular file */
- if (lstat(buff, &statbuf))
+ if (lstat(real, &statbuf))
warn("skipping %s", buff);
else if (!S_ISREG(statbuf.st_mode) && !S_ISLNK(statbuf.st_mode))
warnx("%s is not a regular file or symlink, skipping", buff);
@@ -267,14 +281,15 @@
*islink = S_ISLNK(statbuf.st_mode);
/* then try opening it */
- if (!(file = fopen(buff, "rb")))
+ if (!(file = fopen(real, "rb")))
warn("skipping %s", buff);
else
{
/* now make sure it's a shared library */
if (fread(&exec, sizeof exec, 1, file) < 1)
warnx("can't read header from %s, skipping", buff);
- else if (N_MAGIC(exec) != ZMAGIC && N_MAGIC(exec) != QMAGIC)
+ else if (N_MAGIC(exec) != ZMAGIC && N_MAGIC(exec) != QMAGIC &&
+ N_MAGIC_SWAP(exec) != ZMAGIC && N_MAGIC_SWAP(exec) != QMAGIC)
{
elf_hdr = (ElfW(Ehdr) *) &exec;
if (elf_hdr->e_ident[0] != 0x7f ||
@@ -294,6 +309,9 @@
*type = LIB_ELF;
good = readsoname(buff, file, expected_type, type,
elf_hdr->e_ident[EI_CLASS]);
+ if (byteswapflag == -1)
+ /* byte-order detected */
+ byteswapflag = byteswap;
if (good == NULL || *islink)
{
if (good != NULL)
@@ -313,6 +331,12 @@
}
else
{
+ /* Determine byte-order */
+ byteswap = (N_MAGIC(exec) == ZMAGIC || N_MAGIC(exec) == QMAGIC) ? 0 : 1;
+ if (byteswapflag == -1)
+ /* byte-order detected */
+ byteswapflag = byteswap;
+
if (*islink)
good = xstrdup(name);
else
@@ -330,6 +354,14 @@
*type = LIB_DLL;
}
fclose(file);
+
+ if (byteswapflag >= 0 && byteswap != byteswapflag)
+ {
+ byteswapflag = -2;
+ warnx("mixed byte-order detected, using host byte-order...");
+ }
+ if (byteswapflag == -2)
+ byteswap = 0;
}
}
}
@@ -343,18 +375,24 @@
int change = 1;
char libname[BUFFER_SIZE];
char linkname[BUFFER_SIZE];
+ char reallibname[BUFFER_SIZE];
+ char reallinkname[BUFFER_SIZE];
struct stat libstat;
struct stat linkstat;
/* construct the full path names */
sprintf(libname, "%s/%s", dir, file);
sprintf(linkname, "%s/%s", dir, so);
+ if (!chroot_realpath(chroot_dir, libname, reallibname))
+ warn("can't resolve %s in chroot %s", libname, chroot_dir);
+ if (!chroot_realpath(chroot_dir, linkname, reallinkname))
+ warn("can't resolve %s in chroot %s", linkname, chroot_dir);
/* see if a link already exists */
- if (!stat(linkname, &linkstat))
+ if (!stat(reallinkname, &linkstat))
{
/* now see if it's the one we want */
- if (stat(libname, &libstat))
+ if (stat(reallibname, &libstat))
warn("can't stat %s", libname);
else if (libstat.st_dev == linkstat.st_dev &&
libstat.st_ino == linkstat.st_ino)
@@ -364,14 +402,14 @@
/* then update the link, if required */
if (change > 0 && !nolinks)
{
- if (!lstat(linkname, &linkstat))
+ if (!lstat(reallinkname, &linkstat))
{
if (!S_ISLNK(linkstat.st_mode))
{
warnx("%s is not a symlink", linkname);
change = -1;
}
- else if (remove(linkname))
+ else if (remove(reallinkname))
{
warn("can't unlink %s", linkname);
change = -1;
@@ -379,7 +417,7 @@
}
if (change > 0)
{
- if (symlink(file, linkname))
+ if (symlink(file, reallinkname))
{
warn("can't link %s to %s", linkname, file);
change = -1;
@@ -441,6 +479,7 @@
char *so, *path, *path_n;
struct lib *lp, *libs = NULL;
int i, libtype, islink, expected_type = LIB_ANY;
+ char realname[BUFFER_SIZE];
/* We need a writable copy of this string */
path = strdup(rawname);
@@ -500,8 +539,12 @@
if (verbose > 0)
printf("%s:\n", name);
+ /* get real path in case of chroot */
+ if (!chroot_realpath(chroot_dir, name, realname))
+ warn("can't resolve %s in chroot %s", name, chroot_dir);
+
/* if we can't open it, we can't do anything */
- if ((dir = opendir(name)) == NULL)
+ if ((dir = opendir(realname)) == NULL)
{
warn("skipping %s", name);
free(path);
@@ -596,8 +639,12 @@
char *res = NULL, *cp;
FILE *file;
struct stat stat;
+ char realconffile[BUFFER_SIZE];
+
+ if (!chroot_realpath(chroot_dir, conffile, realconffile))
+ return NULL;
- if ((file = fopen(conffile, "r")) != NULL)
+ if ((file = fopen(realconffile, "r")) != NULL)
{
fstat(fileno(file), &stat);
res = xmalloc(stat.st_size + 1);
@@ -678,22 +725,38 @@
{
int cachefd;
int stroffset = 0;
+ char realcachefile[BUFFER_SIZE];
char tempfile[BUFFER_SIZE];
+ header_t swap_magic;
+ header_t *magic_ptr;
+ libentry_t swap_lib;
+ libentry_t *lib_ptr;
liblist_t *cur_lib;
if (!magic.nlibs)
return;
- sprintf(tempfile, "%s~", cachefile);
+ if (!chroot_realpath(chroot_dir, cachefile, realcachefile))
+ err(EXIT_FATAL,"can't resolve %s in chroot %s (%s)",
+ cachefile, chroot_dir, strerror(errno));
+
+ sprintf(tempfile, "%s~", realcachefile);
if (unlink(tempfile) && errno != ENOENT)
- err(EXIT_FATAL,"can't unlink %s (%s)", tempfile, strerror(errno));
+ err(EXIT_FATAL,"can't unlink %s~ (%s)", cachefile, strerror(errno));
if ((cachefd = creat(tempfile, 0644)) < 0)
- err(EXIT_FATAL,"can't create %s (%s)", tempfile, strerror(errno));
+ err(EXIT_FATAL,"can't create %s~ (%s)", cachefile, strerror(errno));
- if (write(cachefd, &magic, sizeof (header_t)) != sizeof (header_t))
- err(EXIT_FATAL,"can't write %s (%s)", tempfile, strerror(errno));
+ if (byteswap) {
+ swap_magic = magic;
+ swap_magic.nlibs = bswap_32(swap_magic.nlibs);
+ magic_ptr = &swap_magic;
+ } else {
+ magic_ptr = &magic;
+ }
+ if (write(cachefd, magic_ptr, sizeof (header_t)) != sizeof (header_t))
+ err(EXIT_FATAL,"can't write %s~ (%s)", cachefile, strerror(errno));
for (cur_lib = lib_head; cur_lib != NULL; cur_lib = cur_lib->next)
{
@@ -701,29 +764,37 @@
stroffset += strlen(cur_lib->soname) + 1;
cur_lib->liboffset = stroffset;
stroffset += strlen(cur_lib->libname) + 1;
- if (write(cachefd, cur_lib, sizeof (libentry_t)) !=
- sizeof (libentry_t))
- err(EXIT_FATAL,"can't write %s (%s)", tempfile, strerror(errno));
+ if (byteswap) {
+ swap_lib.flags = bswap_32(cur_lib->flags);
+ swap_lib.sooffset = bswap_32(cur_lib->sooffset);
+ swap_lib.liboffset = bswap_32(cur_lib->liboffset);
+ lib_ptr = &swap_lib;
+ } else {
+ lib_ptr = (libentry_t *)cur_lib;
+ }
+ if (write(cachefd, lib_ptr, sizeof (libentry_t)) !=
+ sizeof (libentry_t))
+ err(EXIT_FATAL,"can't write %s~ (%s)", cachefile, strerror(errno));
}
for (cur_lib = lib_head; cur_lib != NULL; cur_lib = cur_lib->next)
{
if (write(cachefd, cur_lib->soname, strlen(cur_lib->soname) + 1)
!= strlen(cur_lib->soname) + 1)
- err(EXIT_FATAL,"can't write %s (%s)", tempfile, strerror(errno));
+ err(EXIT_FATAL,"can't write %s~ (%s)", cachefile, strerror(errno));
if (write(cachefd, cur_lib->libname, strlen(cur_lib->libname) + 1)
!= strlen(cur_lib->libname) + 1)
- err(EXIT_FATAL,"can't write %s (%s)", tempfile, strerror(errno));
+ err(EXIT_FATAL,"can't write %s~ (%s)", cachefile, strerror(errno));
}
if (close(cachefd))
- err(EXIT_FATAL,"can't close %s (%s)", tempfile, strerror(errno));
+ err(EXIT_FATAL,"can't close %s~ (%s)", cachefile, strerror(errno));
if (chmod(tempfile, 0644))
- err(EXIT_FATAL,"can't chmod %s (%s)", tempfile, strerror(errno));
+ err(EXIT_FATAL,"can't chmod %s~ (%s)", cachefile, strerror(errno));
- if (rename(tempfile, cachefile))
- err(EXIT_FATAL,"can't rename %s (%s)", tempfile, strerror(errno));
+ if (rename(tempfile, realcachefile))
+ err(EXIT_FATAL,"can't rename %s~ (%s)", cachefile, strerror(errno));
}
void cache_print(void)
@@ -734,8 +805,13 @@
char *strs;
header_t *header;
libentry_t *libent;
+ char realcachefile[BUFFER_SIZE];
+
+ if (!chroot_realpath(chroot_dir, cachefile, realcachefile))
+ err(EXIT_FATAL,"can't resolve %s in chroot %s (%s)",
+ cachefile, chroot_dir, strerror(errno));
- if (stat(cachefile, &st) || (fd = open(cachefile, O_RDONLY))<0)
+ if (stat(realcachefile, &st) || (fd = open(realcachefile, O_RDONLY))<0)
err(EXIT_FATAL,"can't read %s (%s)", cachefile, strerror(errno));
if ((c = mmap(0,st.st_size, PROT_READ, MAP_SHARED ,fd, 0)) == (caddr_t)-1)
err(EXIT_FATAL,"can't map %s (%s)", cachefile, strerror(errno));
@@ -828,7 +904,6 @@
int nodefault = 0;
char *cp, *dir, *so;
int libtype, islink;
- char *chroot_dir = NULL;
int printcache = 0;
#ifdef __LDSO_CACHE_SUPPORT__
char *extpath;
@@ -891,10 +966,16 @@
}
if (chroot_dir && *chroot_dir) {
- if (chroot(chroot_dir) < 0)
- err(EXIT_FATAL,"couldn't chroot to %s (%s)", chroot_dir, strerror(errno));
- if (chdir("/") < 0)
- err(EXIT_FATAL,"couldn't chdir to / (%s)", strerror(errno));
+ if (chroot(chroot_dir) < 0) {
+ if (chdir(chroot_dir) < 0)
+ err(EXIT_FATAL,"couldn't chroot to %s (%s)", chroot_dir, strerror(errno));
+ }
+ else
+ {
+ if (chdir("/") < 0)
+ err(EXIT_FATAL,"couldn't chdir to / (%s)", strerror(errno));
+ chroot_dir = NULL;
+ }
}
/* allow me to introduce myself, hi, my name is ... */
diff -urN uClibc-orig/utils/Makefile uClibc-20050502/utils/Makefile
--- uClibc-orig/utils/Makefile 2005-05-01 23:10:12.000000000 -0700
+++ uClibc-20050502/utils/Makefile 2005-09-16 19:28:55.000000000 -0700
@@ -29,6 +29,12 @@
TARGET_ICONV =
endif
+ifeq ($(strip $(LDSO_CACHE_SUPPORT)),y)
+HOST_LDSO_CACHE_FLAG = -D__LDSO_CACHE_SUPPORT__=1
+else
+HOST_LDSO_CACHE_FLAG =
+endif
+
# NOTE: We build the utils AFTER we have a uClibc-targeted toolchain.
ifeq ($(strip $(HAVE_SHARED)),y)
@@ -51,7 +57,7 @@
else
LDCONFIG_CFLAGS := $(PIEFLAG) $(LDPIEFLAG)
endif
-ldconfig: ldconfig.c
+ldconfig: ldconfig.c chroot_realpath.c
$(CC) $(CFLAGS) $(LDCONFIG_CFLAGS) \
-DUCLIBC_RUNTIME_PREFIX=\"$(RUNTIME_PREFIX)\" \
-DUCLIBC_LDSO=$(UCLIBC_LDSO) -I. -I../ldso/include \
@@ -79,13 +85,13 @@
ldd.host: ldd.c
$(HOSTCC) $(HOSTCFLAGS) -Wl,-s \
- -DUCLIBC_RUNTIME_PREFIX=\"$(RUNTIME_PREFIX)\" \
+ -DUCLIBC_RUNTIME_PREFIX=\"$(RUNTIME_PREFIX)\" $(HOST_LDSO_CACHE_FLAG) \
-DUCLIBC_LDSO=$(UCLIBC_LDSO) -I. -I../ldso/include \
$^ -o $@
-ldconfig.host: ldconfig.c
+ldconfig.host: ldconfig.c chroot_realpath.c
$(HOSTCC) $(HOSTCFLAGS) -Wl,-s \
- -DUCLIBC_RUNTIME_PREFIX=\"$(RUNTIME_PREFIX)\" \
+ -DUCLIBC_RUNTIME_PREFIX=\"$(RUNTIME_PREFIX)\" $(HOST_LDSO_CACHE_FLAG) \
-DUCLIBC_LDSO=$(UCLIBC_LDSO) -I. -I../ldso/include \
$^ -o $@
diff -urN uClibc-orig/utils/readsoname2.c uClibc-20050502/utils/readsoname2.c
--- uClibc-orig/utils/readsoname2.c 2005-05-01 23:10:12.000000000 -0700
+++ uClibc-20050502/utils/readsoname2.c 2005-09-16 17:48:59.000000000 -0700
@@ -26,7 +26,7 @@
if (fstat(fileno(infile), &st))
return NULL;
- header = mmap(0, st.st_size, PROT_READ, MAP_SHARED, fileno(infile), 0);
+ header = mmap(0, st.st_size, PROT_READ|PROT_WRITE, MAP_PRIVATE, fileno(infile), 0);
if (header == (caddr_t)-1)
return NULL;
@@ -34,6 +34,19 @@
if ((char *)(epnt+1) > (char *)(header + st.st_size))
goto skip;
+#if __BYTE_ORDER == __LITTLE_ENDIAN
+ byteswap = (epnt->e_ident[5] == ELFDATA2MSB) ? 1 : 0;
+#elif __BYTE_ORDER == __BIG_ENDIAN
+ byteswap = (epnt->e_ident[5] == ELFDATA2LSB) ? 1 : 0;
+#else
+#error Unknown host byte order!
+#endif
+ /* Be very lazy, and only byteswap the stuff we use */
+ if (byteswap==1) {
+ epnt->e_phoff=bswap_32(epnt->e_phoff);
+ epnt->e_phnum=bswap_16(epnt->e_phnum);
+ }
+
ppnt = (ElfW(Phdr) *)&header[epnt->e_phoff];
if ((char *)ppnt < (char *)header ||
(char *)(ppnt+epnt->e_phnum) > (char *)(header + st.st_size))
@@ -41,6 +54,14 @@
for(i = 0; i < epnt->e_phnum; i++)
{
+ /* Be very lazy, and only byteswap the stuff we use */
+ if (byteswap==1) {
+ ppnt->p_type=bswap_32(ppnt->p_type);
+ ppnt->p_vaddr=bswap_32(ppnt->p_vaddr);
+ ppnt->p_offset=bswap_32(ppnt->p_offset);
+ ppnt->p_filesz=bswap_32(ppnt->p_filesz);
+ }
+
if (loadaddr == -1 && ppnt->p_type == PT_LOAD)
loadaddr = (ppnt->p_vaddr & ~(page_size-1)) -
(ppnt->p_offset & ~(page_size-1));
@@ -58,11 +79,20 @@
(char *)(dpnt+dynamic_size) > (char *)(header + st.st_size))
goto skip;
+ if (byteswap==1) {
+ dpnt->d_tag=bswap_32(dpnt->d_tag);
+ dpnt->d_un.d_val=bswap_32(dpnt->d_un.d_val);
+ }
+
while (dpnt->d_tag != DT_NULL)
{
if (dpnt->d_tag == DT_STRTAB)
strtab_val = dpnt->d_un.d_val;
dpnt++;
+ if (byteswap==1) {
+ dpnt->d_tag=bswap_32(dpnt->d_tag);
+ dpnt->d_un.d_val=bswap_32(dpnt->d_un.d_val);
+ }
};
if (!strtab_val)
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